物料
plastic support
silica gel 60 matrix
质量水平
等级
high-purity grade
表单
powder
特点
binder Organic Polymer
fluorescent indicator: no
包装
pkg of 250 g
制造商/商品名称
Sigma-Aldrich
技术
thin layer chromatography (TLC): suitable
表面积
~500 m2/g
杂质
≤0.001% Fe3+
粒径
5-25 μm
孔径
0.75 cm3/g pore volume
60 Å medium pore diameter
60 Å pore size
pH值（酸碱度）
~6.8 (10% in aq. suspension)
沸点
2230 °C
mp
>1600 °C
痕量阴离子
chloride (Cl-): ≤0.003%
SMILES字符串
O=[Si]=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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一般描述
Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. It allows a controlled fragmentation resulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction
应用
Silica gel was used on glass plates to perform preparative thin layer chromatography.
储存分类代码
11 - Combustible Solids
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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